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2 years ago

11

Trina has 72 collectors stamp she puts 43

2 answers:

ryzh [129]2 years ago

7 0

116 if you add 72 plus 43

Dafna1 [17]2 years ago

5 0

So basically what you want to do is use subtraction to subtract those 43 stamps from 72.

72 - 43 basically.

So first, if you want to do it the simple way, subtract 3 from 72. Then you end up with:

69 - 40

And then you can just subtract.

29

So she's left with 29 stamps.

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What are the solutions to. x^2 - x - 20 = 0

nignag [31]

Step-by-step explanation:

<em>x² - x - 20 = 0</em>

<em>x²</em><em> </em><em>-</em><em> </em><em>(</em><em>5</em><em>-</em><em>4</em><em>)</em><em> </em><em>x </em><em>-</em><em> </em><em>2</em><em>0</em><em> </em><em>=</em><em> </em><em>0</em><em> </em>

<em>x²</em><em> </em><em>-</em><em> </em><em>5x </em><em>+</em><em> </em><em>4x </em><em>-</em><em>2</em><em>0</em><em> </em><em>=</em><em> </em><em>0</em>

<em>x </em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>5</em><em>)</em><em> </em><em>+</em><em> </em><em>4</em><em> </em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>5</em><em>)</em><em> </em><em>=</em><em> </em><em>0</em>

<em>(</em><em>x </em><em>-</em><em> </em><em>5</em><em>)</em><em> </em><em>(</em><em>x+</em><em> </em><em>4)</em><em> </em><em>=</em><em> </em><em>0</em>

<em>Either</em><em>. </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>

<em>x </em><em>-</em><em> </em><em>5</em><em> </em><em>=</em><em> </em><em>0</em>

<em>x </em><em>=</em><em> </em><em>5</em>

<em>Or, </em>

<em>x </em><em>+</em><em> </em><em>4</em><em> </em><em>=</em><em> </em><em>0</em><em> </em>

<em>x </em><em>=</em><em> </em><em>-</em><em>4</em>

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2 years ago

16. A necklace of former First Lady Jacqueline Kennedy Onassis was originally worth $700. Its

marusya05 [52]

Answer:

30,114.3%

Step-by-step explanation:

Use the percent increase formula:

((new value - initial value) / initial value) x 100

Plug in the values:

((211,500 - 700) / 700) x 100

(210,800 / 700) x 100

= 30,114.29

So, the percent increase is 30,114.3%

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2 years ago

Read 2 more answers

Y = 6x - 4; x = 8 find the value of y for the given value of x

miskamm [114]

X=8
y=6x-4
y=6(8)-4
y=48-4
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2 years ago

Read 2 more answers

(NEED DONE QUICK) Two angles are supplementary. One of the angles measures 4(2x+9) and the other angle measures 2(4x-8) what is

Studentka2010 [4]

Answer:

$x=10$

Step-by-step explanation:

Supplementary angles are angles equal to 180°.

Therefore:

$4(2x+9)+2(4x-8)=180$

Now that we have our equation, let's distribute the $4$ and the $2$ into the parentheses they are next to:

$8x+36+8x-16=180$

Combine like terms:

$16x+20=180$

Subtract $20$ from both sides of the equation:

$16x=160$

Divide by the coefficient of $x$ , which is $16$ :

$x=10$

~

Check your work by substituting $10$ into one of the equations above:

$8(10)+36+8(10)-16=180$

$80+36+80-16=180$

$180=180$

It's correct!

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2 years ago

A line passes through a point (2,8) and has a slope of -5. Write an equation in point-slope form for this line.

vovangra [49]

8= -5(x-2) or -5x-y+18

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3 years ago